Re: Capacitor configuration?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "BunnyKiller by way of Terry Fritz <twftesla-at-uswest-dot-net>" <bigfoo39-at-telocity-dot-com>

Tesla list wrote:

> Original poster: "David Knaack by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <dknaack-at-rdtech-dot-com>
>
> I'm like to buy some of the Geek Group's caps, but I'm having
> trouble deciding what my tank cap size should be.
>
> I'm running a 12/30 NST with a flat 7" ID, 1" t-t spacing
> primary.
>
> Resonance with the NST would be around 0.007uF, so I'm thinking
> of going for around 0.025uF (2 strings of 12 of the 0.15uF caps).
> That should give me a 24kV rating, which should be more than
> sufficent, and give me enough caps to go to a 12/60 power supply
> setup later with no problems.
>
> That should put tuning somewhere between turns 4 and 5.
>
> Does this sound reasonable?  The price is good.
> DK
> --
> 99 little bugs in the code, 99 bugs in the code,
> fix one bug, compile it again, 101 little bugs in the code.

Hi DK...

since you are running 12/30's i would like to suggest that a 1/4" space
between each turn is a bit
more effective.

as far as the cap size ....  20-24KV would be satisfactory and if you can
design it ...  for a 12/30
NST  .006uF would be resonant maybe if you went .007 for a cap for the
single 12/30 NST would be
good...

if you plan on going to a 12/60 NST setup the cap value should be near .015uF

an idea would be to make 2 sets of 20-24KV -at- .007uF and parallel them later
when you add the power
upgrade.


Scot D